Means for securing resilient tires to vehicle-wheels.



ORREL A. PARKER, 0F NEW YORK, N. Y.-

:MEANS I FOB SECURING BESILIENT TIRES TO VEHICLE-WHEELS. i

Specification of Letters' Patent.

Patented Nov. 21, .1916.

Application area November 21, 1907, 'serial No. 403,143. Renewed February 19, 191e. semi No. 79,468.

To all inkom it may concern' Be it known that'I, ORREIJ AL. PARKER,

a citizen of the United States, residing at- New York, in the county and State of New York, have invented certain new and useful Improvements in Means for Securing Resilient Tires to Vehicle-Wheels, of-which the following is a specification, reference being had to the drawings accompanying and forming-part of the same'.

My invention relates to the fastening of resilient tires o-n wheel rims, more particu larly tires comprising a casing filled with an elastic solid medium, usually 'substantially incompressible. Such. medium is Jin the liquid state when first compounded, and in that condition is injected into the casing, after which it sets to a rubber-like consistency of great resiliency and marked durability. This medium, referred to in the claims-hereto annexed as a filling member,

filling, and,a filler. does not possess in itself sufficient rigidity to properly support the desired lo-ads. Tires of -this kind are used in considerable numbers, withnotable success, being practically as resilient as desirable.

as nearly as possible the'de'sired tension onthe casing. The filling medium having once set, however, if it is found that the tire is too hard, the only method now in use 'for softening thetire is to remove a sufficient quantity, usually very slight, vof the filling,-

at suitable points. On the other hand, if

the tire is too soft when completed or ifl from any cause vit afterward becomes too soft, it is necessary to inject a small quantity of fresh filling medium mtothe caslng,

until the desired tension isobtained. But both these operations requlre special tools and skill, usually not availablel to the ordii nary user of the tires. .-Furth'ermore,.the removal of such a tire from the rim; is a. matter of some difficulty, and also requires spel cial tools and skill; nso that la damagedor Worn out tire ordinarily cannot be replaced on theroad, where such replacement may be Instead the entire Wheelumust usually be returned to the factory for the desired new tire or for the necessary `repairs.

Again, it is practically essential, to th'e best results, that the casing of such a tire be Vfilled on the' wheel, since the casings, even.

supposedly ofthe same dimensions, vary in size when new and particularly after use; so that to fill thecasing or inner tube off vthe wheel at just the pressure proper for thev desiredtension after the filled tire is placed on the rim is practically impossible.v Hence filled casingsor inner tubes cannot be furn1shed to.' be placed on the wheels bythe user himself, and a` person desiring such tires on his vehicle'. must therefore forward 'the wheels themselves to the factory for objectto provide a rimconst'ruction which i will permitthe tire tobe easily removed and replaced' and by which thetire can be made hardergor softer, that is, can be in- Hated vor defiated as desired."l

My invention is capable ,ofl various embodiments,but in carrying out the same in the preferred manner Iprovide a flanged rim, of which atleast one flange is,.remov able, thereby permitting the tire to be readily slipped on or off the other portion of the rim; At the same tim'egneans are provided for adjusting the removable `portion toward or from the other. The effect of forcing lthe adjustable' flange toward the other is to contract the base of the tire, thereby drawing the outercasing more tightly about the 'filling medium and correspondinglyv increasing the tension or hardness of the tire;

while adjusting the movable flange in the.

opposite direction permits the -base of the tire to expand andloosenstheuter casing,

thereby making the tire correspondingly softer.

Referring `now to the drawing,v Figure 1 is a cross section of the preferred embodi- -ment of the invention, showing it infuse with an inner tube tire `of the sho-called clencher type. Fig. 2 `is a side view of the same:l Fig. 3 is la cross section showing the invention used with a lnovel form ofA "clencher tire.

Fig. 4 is a cross section showing the invention employed with a tire of the so-called Dunlon type.

The felly of the wheel is designa-ted by. A.

Thereon is secured the rim, portions of which at the Side edges thereof areforined Here. as in the other iigures. adjustment to coperate with the; base of the tire to of the flange l" contracts the blise oi' the hold or bind the samel on the rim.. lnFigs. tire or permits it to expand. thereby har- 1 and 2. the cooperating portions of the rim dening or softening the tire as ,the case 5 are in the form. of radial flanges 4of the may' be. i

and in effect forming a part thereof.l The y l. The combination. with a resilient tire 1 other member of the rim. hayingjthe flange comprising an outer casing and a .lilling E', is movable 'laterally on vthe band toward member not possessing in itself sniiicientl or from thel iXed member. rigidity to rproperly support the desired Bearing against the. flange E. or. if deloads, of spaced retaining members con-` 90 sired. fastened thereto. is 'a still unyielding stracted to engage the base. of the tire lat binding member or members. preferably a erall)` tohold thetire in plat-and means stiff unyielding` ring G. spaced slightly from for varying the lSpace between said retaining theV felly to permit adjustlient toward the, members to produce. contraction-or expan- -SG same. Extending through he ring and the sion of the base .of tlieftire as desired. 95:*

' felly are binding or clamping bolts H, the whereby the outer kcasing can be bo and heads of which overlap r engage the band around the filling member as f'ighll or F to prevent any possible displacement looselyv as desired. toy vary the; tension or` thereof relative to the felly when the bolthardness of the tire.

- 35 nuts are set up. The effect of the. clamping 2. 4The combination,with a resilient tire r100 A ring G is to hold the adjustable member of comprising` an 'outer Acasing and -a .fillingr the rim against outward displacement. and. mein/bernot/possessing yin itself sutlicient when the .bolts are tightened.- to force the rigidity to properly support ,the desired said member positively toward the- 'other, loads. of spaced retaining;` llauges engaging 40` thereby compressing theV base of the tire. the base ot' the tire tohold the tire in place, 105 This narrowing of' the base of the tire draws and means forv varying '.tl'ie spare vbetween the outer casingmore tightly around the said flanges, whereby ther'outer casing can` filledA inner tube and correspondingly inbe bound around-the fillingI member` as creases the .tension or hardness of vthe tire. tightly or loosely as desired, to vary the On thel other hand, loosening the bolts H tension or` hardness of the tire.

f permits the base of the tire to expand, there- 3. T hecombination, with a resilient tire 'by relieving the tension of the outer casing conn'irising an outer. casing and a yfilling on the.I filling medium and making the tire member not possessing in itself sufficient correspondingly softer. rigidity to properly support the desired 50 Fig. 3 shows the rim devices use 'd with loads, of fixed' and adjustable retaining 1 'a single-tube tire of the clencher type. In members engaging the base ofy -the tire to this tire the casing is continuous instead hold the tire in place, and.A means for securof divided and the compression of the base ing the adjustable memberfin adjusted posibv therinward adjustment of the rim memtion relative to the fixed member, whereb}y ber E mayproduce a Slight wrinkle or fold the outer casing can be bound `around the 120y in the casing as indicated at I. between the filling member as tightly or loosely as derim members. l sired, lto vary the' tension or hardness o l' Fig. el shows 'the rim devices used with a4 the tire. tire of the so-called Dunlop type, in which 4. The coinbination.*witl1 a resilient tire the edges of the .outer casing B are inexcomprising a casing `and a fillingnot hav- 125. tensible. For this form of tire 'the rim ing iny itself suiicient rigidity lto properly flanges preferably are not hooked but are support the desired loads, of a rim havin formed as shown at E and E so as to members constriictedto engage the base o -priide secure bearingr against the -outthe tire at the sides thereof, and means for l warllly pressing edges of the casing B". idJustmg one of said members'toward 'and 180 "clencheix-type. but other types of flanges ln'all of the forms illustrateda slight adn may be used.` as is more fully explained jnstment of the movable flange. is sullicient hereinafter. to produce. a marked ellect on thetension The tire shown in Figs. l and '2 comprises of the tire. Such adiustn'ient can be made 10' an outer casing or "shoe" B. and "inner by any user. with no other toolthan a simple 75p tubelC- angl a lillingof resilient material wrench. The user is also able to remore D in the latter. Theontward 'pressure of and replace, the tire so that the complete the filling is of course exerted in large part tire. filled and ready for use. or a `filled in forcing the edges of the outer casing into inner tube, can. be furnished` by the maker 15 the cooperating flanges of the. rim. and placed on the wheel by the user. On 8 .The rim itself is in Atwo-parts. asl shown, the other hand. while the ii'rention is of one of which has the flange E andthe other special advantage with fille( tires. it is the flange E. 'The former is fastened to plain that pneumatic tires can be used tlierc. the felly.' either directly or, as is in general with if desired. 20 preferable. to a bandv F fixed' to tlrefelly ll'hatY I claim is: g5` V.

member adapted to bind the said casing tightly or loosely about the filling with the degree of tightness desired.

6. The combination, With a resilient tire comprising a easing and a filling not havingin itself sufiicient rigidity to properly support the desired loads, of' a wheel rim hav-l ing side 4iianges .engagi g the base of thev tire laterally to hold the tire in place, and means for adjusting one of said flanges toward and from the other to bind'the casing about the filling with the degree oftig'htness desired.

7. The colnbinatiomwith a." wheel lrim comprising two parts each having a tire engaging lian'ge and a tire comprising a casing and alillingnot possessing in itself 'sufficient rigidity to properly support the desired loa-ds,` the filling exerting pressure on ythe'casin 'and causing the sides of the casing at the ase to bear against the flanges of the rim, of means for adjusting one 4rimpart toward the other against the pressure `exerted on the tire Ycasing and the rim-. flanges by the tire filling material.

8.' A tire comprising an elastic filler or vlilli g member which has not in itself suffi'- cien rigidity to properly support the desired loads, means including an outer casing for inclosing the filler, and means for drawing the outer casing tightly about the fillerto compress and support the same, the parts being so proportioned that the means for drawing .the 'casing is ordinarily. 'capable when the tire is in use of further adjustment to compensate for s hrinkage of the filler or stretching ofthe coveror to vary -the hardness of' the tire.

9. The process of producing a working i rigidity Iand pressure in a tire which has a filler or lillmg member and a flexible cover 'not possessing' 1n themselves sufficient rigidity to properly support the desired loads,` i

which consists in drawing the cover morel closely about the filler until the necessary pressure and rigidity are developed.

10. The combination ofA a resilient tire comprisingvan outer incasing member and a filling member not possessing in` itself` sufiicientv rigidity to properly support the desired loads, and means for adjusting the outer mcasing member upon the filling member thereby to vary the tension or hardness of the .tire as desired.

11. Atire comprising a liller or -filling member. which has not inxit v lf sufiicient rigidity' to properly ksupport *the desiredfloads, means mcludmg lan outer mcas1ng member for mclosmg the filler or filling member, and means for drawing the outer mcasing member tightly about the filler or illinglmemberto compress and support. the

same, theA parts being so proportioned that the means for drawing the mcasing .member is ordinarily capable, when the tire is in use, yof ,further adjustment to compensate for shrinkage of the vfiller or filling member or to vary the load supporting capacityof thetiref l OBR-EL A. PARKER.

illitnesses:

S. S. DUNHAM, M. LAWSON DYER. 

